Dyeing mechanism



Feb. 16, 1932. F. E. ZAVODOFF 1,845,010

DYEING' MECHANISM lflled April 3, 1951 3 Sheets-Sheet l Feb. L16, 1932.F. E. zAvoDQFF 1,845,010

DYEING MECHANISM Filed April 3. 1931 3 Sheets-Sheet 2 Fwd if? Zalm/0f?@M1115 @Hof/nuit Feb. 16, 1932. F. E. zAvoDoFF DYEING MECHANISM FiledApril 3, 19:51 3 Sheets-Sheet 3 nvenboz ri E Zal/oda' 3&1# 111'5 Gum/M13Patented Feb. 16, 1932 UNITED STATES FRED E. ZA'VODOFF, 0F NEWARK, NEWJERSEY Y DYEING MECHANISM v*Application led kApril 3,

This invention relatesto devices that apply a coloring agent to alengthof thread,`and has for itsmain feature-and object means whereby thedevice will cease to lbe operative l a predetermined time after ithasbeen set in operation. y i f ,n n

In the accompanying drawings the invention is disclosed in a concreteand preferred form in which: A y

Fig. lis a plan view, with parts omitted, of an arrangement of elementsembodying .the invention, said view being partlyin section substantiallyonfthe plane of irregular line 1e-1ofFig-2;

tially on the plane of line-2`2 of Fig: 1;

Fig. 3 is a top plan view of the coloring device shown in Fig. 1, butshownmore in d etail and with kparts broken away and omit- Fig. 4 is aview in front elevation, with parts omitted and in section, lookingsubstantially in the direction of arrow 4 of Fig. 3;

Fig. 5 is a view in side elevation'looking substantially inthedirectionof arrow 5 of Fi 3- i Fig is a view ofthe reverse side of thetiming means shown in Fig. 5;

Fig. 7 is a more or less diagrammatic view i of the circuit arrangementsemployed to control the device; an l Fig. 8 is a diagrammatic Viewshowing a wound thread having its inner convolutions impermanentlycolored or bleached. v 1

l indicates a support for a sourceof supply of thread, here shown asspools 2, from which spools the thread is drawn and wound on bobbins 3..When bobbins 3 have been supplied with sufficient thread from thespools, said bobbins become in turn a source of supply for a lace-makingor other machine. To notify the operator of the lace-making machine whenthe supply of thread on bob'- bins 3 is about to become exhausted it iskdesired to impermanently color the innermost convolutions of the threadwound on the bobbins, and such impermanent coloring may of course beproduced by means of a wash able dye or by bleaching. In order to colorthe innermost convolutions of the thread of Fig-2 is a verticalsectional view substan- 1931'. serial No. 527,432.

bobbins 3 (see Fig. 8), a device is interposed between the spools andthe bobbins located out of the path (indicated in full lines in Fig. 2)whichthe thread normally takesin passing from one to the other, andmeans'are provided to deflect the thread (indicated in dotted lines inFig. 2) into engagement with the device. Y

l Inr the form of the invention here disclosed, 4f indicates a fountainand 5 is a fountain roll rotatably'mount'ed in the fountain and actuatedby any suitable means such as pulley 6;, 7 is a drying rollmountedoutside of the fountain and in such position that the threadafter engaging the fountain roll will engage thedrying'roll before itpasses tothe bobbin'. The dryingroll may have a surface of absorbentmaterial such as blotting paper, if desired.v 8 is a guide in the' formof a rod carried by arms 9 pivoted at 10. A spring 11 anchored on theframe at 12 normally urges the guideinto its upper or inactive position.1,3 indicates a latch taking the form of a bar slidably mounted inbrackets 14 and normally moved into latching position (to the right inFig. 4) by means of a spring 15. Said latch carries two upright latchingmembers 16 to engage arms 9, and it will be understood that when theoperator desires to render the device operative to color the thread, hesimply depresses guide 8, thereby bringing thethread into engagementwith the rolls, and as said guide descends, the arms thereof engage theupright latching members and force'the latching bar to the left in Fig.Ll against the tension of spring 15, after which said latching barclicks back and retains guide 8 in its operative position against thetension of spring 11. When it is desired to release the guide, theoperator will press button 17 onthe end of the latching bar, there` bymoving the latter to the left in Fig. 4 thus permittingspring y11 tomove the guide into its upper or inactive position. f

The foregoing constitutes a complete, operative device, but if desiredthis device may be rendered semi-autoinatic in action, -for eX- ample bythe following means. 18 indicates an electro-magneticdevice, here asolenoid, mounted on the framework, the core 19 lof which solenoid isconnected by means of arm to latching bar 13, the parts being soarranged that, when the solenoid is energized, the latching bar will bemoved to the left in Figs. 3 and 4 against the tension of spring 15. 21indicates an auxiliary solenoid also mounted on the framework, the core22 of which auxiliary solenoid is connected to switch arm 23 pivoted at241 and adapted, when 21 is energized, to move contact spring 25 againstcontact spring 2G. Arm 23 also carries a projection 27 to be engaged bymember 28 of arm 2() to separate springs 25 and 26 by turning 23 on itspivot when solenoid 18 is energized and latch bar 13 is moved to theleft (Fig. 7). 29 and 30 indicate two contact springs laced in the pathof revoluble contact mem er 31, here shown as bein operated by a timingdevice or stop cloci 32. This stop clock is so mounted on the framework(in brac Yet 33) that its stem 34 is beneath a projection 35 ot guide 8.It will now be understood that when the operator depresses guide 8 tobring the thread against the rolls, he likewise depresses stem 34 andstarts the timing element. lf springs 25 and 26 are in contact, themovement of the latching bar (13) to the left (caused by the downwardmovement of guide 8) will separate the Springs. Contact member 31 nowstarts rotation and eventually encounters contact 29, thereby closing acircuit through solenoid 21 over wires 3G, 37 and battery 38 to member31. This energizes 2l and closes contacts 25-26- Member 31 continues itsrotation and eventually reaches contact 30, thereby closing a circuitthrough solenoid 18 over wire 30, contacts 25 and 26, wire 40, solenoid18, wire 41, battery 38 to member 31. This energizes solenoid 18 andmoves latching bar 13 to the left (Fig. 7) thereby releasing guide 8(the latter moving upward under the compulsion of spring 11). The effectof this is to stop timing element 3l (stem 34 being permitted to rise),to break the circuit at 25-26 by the left-hand releasing movement oflatching bar 13, and to permit the thread to resume its normal path outof contact with the rolls. It. will be evident therefore that, after apredetermined period or after a given length of thread has been colored,the device is automatically released.

I claim:

l. The combination with a support for a source of supply of thread and abobbin on which the thread is wound, of means, located out of the normalpath of' the thread from the source to the bobbin` to apply a coloringagent to the thread, a guide. normally urged out of active position, todeilect the thread out of its normal path into a path where it receivesthe coloring agent as it passes from the source to the bobbin. latchingmeans to retain the guide in its active position, and

" means to release the latching means.

2. The combination with a support for a source of supply of thread and abobbin on which the thread is wound, of means, located out of the normalpath of the thread from the source to the bobbin, to apply a coloringagent to the thread, a guide, normally urged out of active position, todeflect the thread out of its normal path into a path where it receivesthe coloring agent as it asses from the source to the bobbin, latchmgmeans to retain the guide in its active position, and means toautomatically release the latch a predetermined period after it has beenmoved into position to retain the guide in its active position.

3. The combination with a support for a source of supply of thread and abobbin on which the thread is wound, of means, located out of the normalpath of the thread from the source to the bobbin, to apply a coloringagent to the thread, a guide, normally urged out of active position, todeflect the thread out of its normal path into a path where it receivesthe coloring agent as it passes from the source to the bobbin, latchingmeans to retain the guide in its active position, and means toautomatically release the latch after a. predetermined length of thethread has been colored.

Y 4. The combination with a support for a source of supply of thread anda bobbin on whichthe thread is wound, of a device, normally inactive,which when rendered active applies a coloring agent to the thread as itpasses from the source of supply to the bobbin, latching means to retainthe device in its active position, electro-magnetic means which whenenergized releases the latching means and `renders the device inactive.and means to automatically close a circuit through said electromagneticmeans a predetermined period after the device has been rendered active.

5. The combination with a support for a source of supply of thread and abobbin on which the thread is wound, of a device, normally inactive,which when rendered active applies a coloring agent to the thread as itpasses from the source of supply to the bobbin, latching means to retainthe device in its active position, electro-magnetic means which whenenergized releases the latching means and renders the device inactive,and means to automatically close a circuit thorugh said electro-magneticmeans after a preletermined length of thread has been colore 6. Thecombination with a support for a source of supply of thread and a bobbinon which the thread is wound, of means, located out of the normal pathof the thread from the source to the bobbin, to apply a coloring agentto the thread, a guide, normally urged out of active position, todeflect the thread out of its normal path into a path where it receivesthe coloring agent as it passes from the source to the bohbin, latchingmeans to retain the guide in its active position, electromagnetic meansWhich WhenL energized releases the latch, and means to close a circuitthrough said electro-magnetic means. n

7. The combination with a support for a source of supply of thread and abohbin on Which the thread is Wound, of a device, normally inactive,Which When rendered active applies a coloring agent to the thread as itpasses from the source of supply to the hobbin, a timing element, meansto render the device active and to place it under the control of thetiming element, and means controlled by the timing element to render thedevice inactive.

8. The comhination'with a support for a source of supply of thread and abobhin on Which the thread is Wound, of a device, normally inactive, ofmeans, located out of the normal path of the thread from the sourcetothe bohhin, to apply a coloring agent to the thread, a guide, normallyurged out of active position, to deect the thread out of its normal pathinto a path Where it receives the coloring agent as it passes from thesource to the bobbin, a timing element rendered act-ive by the guidewhen the latter causes the thread to be deflected, latching means toretain the guide in its active position, and means controlled by thetiming element to release the latching means.

9. The combination With a supportrfor a source of supply of thread and abobhin on which the thread is Wound, of a device, normally inactive, ofmeans, located out of the normal path of the thread from the source tothe hohhin, to apply a coloring agent to the thread, `a guide, normallyurged out of active position, to deflect the thread out of its normalpath into a path Where it receives the coloring agent as it passes fromthe source to the hohhin, a timing element rendered active by the guideWhen the latter causes the thread to he deflected, latching means toretain the guide in its active position, electro-magnetic means Whichwhen energized releases the latching means, and means controlled by thetiming element to close a circuit through the electro-magnetic means.Signed at New York city, in the county of New York, and State ofNewYork, this 13th day of February, 193].

FRED E. ZAVODOFF.

